Phenol ionization in dopa determines the site of methylation by catechol-O-methyltransferase.
D002394:Catechol O-Methyltransferase / Q000378:metabolism*; D004295:Dihydroxyphenylalanine / Q000031:analogs & derivatives / Q000378:metabolism*; D007700:Kinetics; D009682:Magnetic Resonance Spectroscopy; D008745:Methylation; D010636:Phenols
D010636:Phenols; C029112:5-fluorodopa; D004295:Dihydroxyphenylalanine; D002394:Catechol O-Methyltransferase